netdev - Re: [PATCH net-next-2.6] bnx2x: Remove two prefetch()

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 28 Apr 2010 09:53:46 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eilong@...adcom.com
Cc:	vladz@...adcom.com, eliezert@...il.com, eric.dumazet@...il.com,
	xiaosuo@...il.com, hadi@...erus.ca, therbert@...gle.com,
	shemminger@...tta.com, netdev@...r.kernel.org
Subject: Re: [PATCH net-next-2.6] bnx2x: Remove two prefetch()

From: "Eilon Greenstein" <eilong@...adcom.com>
Date: Wed, 28 Apr 2010 16:14:15 +0300

> On Tue, 2010-04-27 at 15:19 -0700, David Miller wrote:
>> From: Eric Dumazet <eric.dumazet@...il.com>
>> Date: Wed, 28 Apr 2010 00:18:13 +0200
>> 
>> > [PATCH net-next-2.6] bnx2x: Remove two prefetch()
>> > 
>> > 1) Even on 64bit arches, sizeof(struct sk_buff) < 256
>> > 2) No need to prefetch same pointer twice.
>> > 
>> > Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
>> > CC: Eilon Greenstein <eilong@...adcom.com>
>> 
>> Eilon please review and ACK/NACK
> 
> Vlad ran few benchmarks, and we couldn't find any justification for
> those prefetch calls. After consulting with Eliezer Tamir (the original
> author) we are glad to Ack this patch.
> 
> Thanks Eric!
> Acked-by: <eilong@...adcom.com>

Thanks, applied.

Please put your full name as well as your email address in Acked-by:
tags, just like you do for Signed-off-by: tags.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html